A techno-economic assessment of biomethane and bioethanol production from crude glycerol through integrated hydrothermal gasification, syngas fermentation and biomethanation

Bioethanol is widely perceived as a clean fuel that can be used directly as automobile fuel or blended with petrol without engine modification. Similarly, biomethane can be used as an environmentally friendly substitute to natural gas for diverse applications such as transportation, heating, and ele...

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Autores principales:	Jude A. Okolie, Meshach E. Tabat, Burcu Gunes, Emmanuel I. Epelle, Alivia Mukherjee, Sonil Nanda, Ajay K. Dalai
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Biodiesel Biomethane Bioethanol Glycerol Process simulation Techno-economic analysis Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/610fb472b2a949598a608a0aaa2713b3
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spelling	oai:doaj.org-article:610fb472b2a949598a608a0aaa2713b32021-11-20T05:13:21ZA techno-economic assessment of biomethane and bioethanol production from crude glycerol through integrated hydrothermal gasification, syngas fermentation and biomethanation2590-174510.1016/j.ecmx.2021.100131https://doaj.org/article/610fb472b2a949598a608a0aaa2713b32021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2590174521000568https://doaj.org/toc/2590-1745Bioethanol is widely perceived as a clean fuel that can be used directly as automobile fuel or blended with petrol without engine modification. Similarly, biomethane can be used as an environmentally friendly substitute to natural gas for diverse applications such as transportation, heating, and electricity generation. Recently, there has been a growing interest in the cost-effective and sustainable production of both these biofuels. The present study reveals a conceptual design for biomethane and bioethanol production from crude glycerol obtained from the biodiesel industry. The techno-economic feasibility of three different scenarios was assessed. Scenario 1 is based on bioethanol production by coupling hydrothermal gasification and syngas fermentation. Scenario 2 consists of hydrothermal gasification, syngas fermentation, and CO2 capture unit. In scenario 3, biomethanation and electrolytic unit were added to scenario 2 to convert CO2 to biomethane. The energy efficiency of the scenarios examined ranges from 30.2% to 35.1%. Scenario 3 had the highest energy efficiency of 35.1%. Moreover, the minimum selling price of bioethanol declined in the following order: scenario 2 (USD $1.4 per liter) > scenario 1 (USD $1.32 per liter) > scenario 3 (USD $0.31 per liter). The discounted cash flow analysis results indicated that scenario 3 is the most profitable because of its non-discounted net present value of USD $34.9 million compared to the other case studies. Sensitivity analysis reveals that electricity and glycerol cost had the most effect on the minimum selling price of bioethanol.Jude A. OkolieMeshach E. TabatBurcu GunesEmmanuel I. EpelleAlivia MukherjeeSonil NandaAjay K. DalaiElsevierarticleBiodieselBiomethaneBioethanolGlycerolProcess simulationTechno-economic analysisEngineering (General). Civil engineering (General)TA1-2040ENEnergy Conversion and Management: X, Vol 12, Iss , Pp 100131- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biodiesel Biomethane Bioethanol Glycerol Process simulation Techno-economic analysis Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Biodiesel Biomethane Bioethanol Glycerol Process simulation Techno-economic analysis Engineering (General). Civil engineering (General) TA1-2040 Jude A. Okolie Meshach E. Tabat Burcu Gunes Emmanuel I. Epelle Alivia Mukherjee Sonil Nanda Ajay K. Dalai A techno-economic assessment of biomethane and bioethanol production from crude glycerol through integrated hydrothermal gasification, syngas fermentation and biomethanation
description	Bioethanol is widely perceived as a clean fuel that can be used directly as automobile fuel or blended with petrol without engine modification. Similarly, biomethane can be used as an environmentally friendly substitute to natural gas for diverse applications such as transportation, heating, and electricity generation. Recently, there has been a growing interest in the cost-effective and sustainable production of both these biofuels. The present study reveals a conceptual design for biomethane and bioethanol production from crude glycerol obtained from the biodiesel industry. The techno-economic feasibility of three different scenarios was assessed. Scenario 1 is based on bioethanol production by coupling hydrothermal gasification and syngas fermentation. Scenario 2 consists of hydrothermal gasification, syngas fermentation, and CO2 capture unit. In scenario 3, biomethanation and electrolytic unit were added to scenario 2 to convert CO2 to biomethane. The energy efficiency of the scenarios examined ranges from 30.2% to 35.1%. Scenario 3 had the highest energy efficiency of 35.1%. Moreover, the minimum selling price of bioethanol declined in the following order: scenario 2 (USD $1.4 per liter) > scenario 1 (USD $1.32 per liter) > scenario 3 (USD $0.31 per liter). The discounted cash flow analysis results indicated that scenario 3 is the most profitable because of its non-discounted net present value of USD $34.9 million compared to the other case studies. Sensitivity analysis reveals that electricity and glycerol cost had the most effect on the minimum selling price of bioethanol.
format	article
author	Jude A. Okolie Meshach E. Tabat Burcu Gunes Emmanuel I. Epelle Alivia Mukherjee Sonil Nanda Ajay K. Dalai
author_facet	Jude A. Okolie Meshach E. Tabat Burcu Gunes Emmanuel I. Epelle Alivia Mukherjee Sonil Nanda Ajay K. Dalai
author_sort	Jude A. Okolie
title	A techno-economic assessment of biomethane and bioethanol production from crude glycerol through integrated hydrothermal gasification, syngas fermentation and biomethanation
title_short	A techno-economic assessment of biomethane and bioethanol production from crude glycerol through integrated hydrothermal gasification, syngas fermentation and biomethanation
title_full	A techno-economic assessment of biomethane and bioethanol production from crude glycerol through integrated hydrothermal gasification, syngas fermentation and biomethanation
title_fullStr	A techno-economic assessment of biomethane and bioethanol production from crude glycerol through integrated hydrothermal gasification, syngas fermentation and biomethanation
title_full_unstemmed	A techno-economic assessment of biomethane and bioethanol production from crude glycerol through integrated hydrothermal gasification, syngas fermentation and biomethanation
title_sort	techno-economic assessment of biomethane and bioethanol production from crude glycerol through integrated hydrothermal gasification, syngas fermentation and biomethanation
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/610fb472b2a949598a608a0aaa2713b3
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A techno-economic assessment of biomethane and bioethanol production from crude glycerol through integrated hydrothermal gasification, syngas fermentation and biomethanation

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